EP0411564A2 - Flüssigkeitspumpe - Google Patents

Flüssigkeitspumpe Download PDF

Info

Publication number: EP0411564A2
Authority: EP; European Patent Office
Prior art keywords: pump; chamber; wall; pump according; conduit
Prior art date: 1989-08-03
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

EP90114674A

Other languages

English (en)

French (fr)

Other versions

EP0411564A3 (en

Inventor

Jean-Claude Buffet

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

BorgWarner Transmission Systems Monaco SAM

Original Assignee

Eaton SAM

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1989-08-03

Filing date

1990-07-31

Publication date

1991-02-06

1990-07-31 Application filed by Eaton SAM filed Critical Eaton SAM

1991-02-06 Publication of EP0411564A2 publication Critical patent/EP0411564A2/de

1992-01-02 Publication of EP0411564A3 publication Critical patent/EP0411564A3/en

Status Withdrawn legal-status Critical Current

Links

239000007788 liquid Substances 0.000 title claims description 11
238000005086 pumping Methods 0.000 claims description 17
238000007789 sealing Methods 0.000 claims description 8
239000011324 bead Substances 0.000 claims 1
230000007704 transition Effects 0.000 claims 1
230000005484 gravity Effects 0.000 abstract description 5
230000000694 effects Effects 0.000 abstract description 2
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
229910052742 iron Inorganic materials 0.000 description 5
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
230000000903 blocking effect Effects 0.000 description 3
238000010409 ironing Methods 0.000 description 2
230000000717 retained effect Effects 0.000 description 2
239000004677 Nylon Substances 0.000 description 1
230000002159 abnormal effect Effects 0.000 description 1
239000002131 composite material Substances 0.000 description 1
239000011521 glass Substances 0.000 description 1
238000009499 grossing Methods 0.000 description 1
238000010438 heat treatment Methods 0.000 description 1
230000007774 longterm Effects 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
229920001778 nylon Polymers 0.000 description 1

Images

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/04—Pumps having electric drive

Definitions

the present invention relates to a pump for liquids having a pumping chamber, a reciprocable wall in the chamber to periodically alter tha volume thereof, inlet and outlet conduits communicating with the chamber, and appropriately directed unidirectional valves (such as check valves, duck-bill valves) controlling the flow direction in the conduits.
Such pumps are known, e.g from EP-A-286 404 and FR-A-2262711. It is sometimes necessary to make sure that no liquid can pass between the condiuits through the chamber when the pump is not operative. This is because the pump may have long-term, semi-permanent connections between a liquid source or reservoir and, either a utilisation device requiring pumped liquid, or simply an open pipe or tube for attachment to such a device.
the invention provides that the reciprocable wall is quiescently biased in one direction towards, and in contact with, another member of the chamber (which is known in itself); and characterised in that the other member is the mouth of one of the conduits where it joins the chamber, and the contact is a substantially sealing one.
the sealing action is derived from a spring, so does not absorb power and can be effective during long unenergised periods of the pump. Also the spring is not an extra, being already a component of the prior art pumps.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Reciprocating Pumps (AREA)

EP19900114674 1989-08-03 1990-07-31 Pump for liquids Withdrawn EP0411564A3 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GB898917747A GB8917747D0 (en)	1989-08-03	1989-08-03	Pump for liquids
GB8917747		1989-08-03

Publications (2)

Publication Number	Publication Date
EP0411564A2 true EP0411564A2 (de)	1991-02-06
EP0411564A3 EP0411564A3 (en)	1992-01-02

Family

ID=10661090

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19900114674 Withdrawn EP0411564A3 (en)	1989-08-03	1990-07-31	Pump for liquids

Country Status (2)

Country	Link
EP (1)	EP0411564A3 (de)
GB (1)	GB8917747D0 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US20140140873A1 (en) *	2012-11-20	2014-05-22	Flow Control LLC	Sealed diaphragm pump
US9084845B2 (en)	2011-11-02	2015-07-21	Smith & Nephew Plc	Reduced pressure therapy apparatuses and methods of using same
US9642955B2 (en)	2006-09-28	2017-05-09	Smith & Nephew, Inc.	Portable wound therapy system
CN107956667A (zh) *	2017-11-10	2018-04-24	深圳市钜泰泵业有限公司	微型水泵及液体循环系统
US20180132693A1 (en) *	2015-06-19	2018-05-17	Bitron S.P.A.	Pump for regenerating a decalcifying device of a dishwashing machine
US10299964B2 (en)	2012-05-15	2019-05-28	Smith & Nephew Plc	Negative pressure wound therapy apparatus
US10682446B2 (en)	2014-12-22	2020-06-16	Smith & Nephew Plc	Dressing status detection for negative pressure wound therapy
US11027051B2 (en)	2010-09-20	2021-06-08	Smith & Nephew Plc	Pressure control apparatus
US12029549B2 (en)	2007-12-06	2024-07-09	Smith & Nephew Plc	Apparatus and method for wound volume measurement

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1571360A (en) *	1978-04-05	1980-07-16	Gen & Country Lab Ltd	Diaphragm pumps and compressors
GB8708417D0 (en) *	1987-04-08	1987-05-13	Eaton Sa Monaco	Electric pump

1989
- 1989-08-03 GB GB898917747A patent/GB8917747D0/en active Pending
1990
- 1990-07-31 EP EP19900114674 patent/EP0411564A3/en not_active Withdrawn

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US10130526B2 (en)	2006-09-28	2018-11-20	Smith & Nephew, Inc.	Portable wound therapy system
US12115302B2 (en)	2006-09-28	2024-10-15	Smith & Nephew, Inc.	Portable wound therapy system
US9642955B2 (en)	2006-09-28	2017-05-09	Smith & Nephew, Inc.	Portable wound therapy system
US11141325B2 (en)	2006-09-28	2021-10-12	Smith & Nephew, Inc.	Portable wound therapy system
US12029549B2 (en)	2007-12-06	2024-07-09	Smith & Nephew Plc	Apparatus and method for wound volume measurement
US11623039B2 (en)	2010-09-20	2023-04-11	Smith & Nephew Plc	Systems and methods for controlling operation of a reduced pressure therapy system
US11027051B2 (en)	2010-09-20	2021-06-08	Smith & Nephew Plc	Pressure control apparatus
US12226611B2 (en)	2010-09-20	2025-02-18	Smith & Nephew Plc	Pressure control apparatus
US11534540B2 (en)	2010-09-20	2022-12-27	Smith & Nephew Plc	Pressure control apparatus
US12582762B2 (en)	2011-11-02	2026-03-24	Smith & Nephew Plc	Reduced pressure therapy apparatuses and methods of using same
US10143783B2 (en)	2011-11-02	2018-12-04	Smith & Nephew Plc	Reduced pressure therapy apparatuses and methods of using same
US9084845B2 (en)	2011-11-02	2015-07-21	Smith & Nephew Plc	Reduced pressure therapy apparatuses and methods of using same
US11648342B2 (en)	2011-11-02	2023-05-16	Smith & Nephew Plc	Reduced pressure therapy apparatuses and methods of using same
US11253639B2 (en)	2011-11-02	2022-02-22	Smith & Nephew Plc	Reduced pressure therapy apparatuses and methods of using same
US10702418B2 (en)	2012-05-15	2020-07-07	Smith & Nephew Plc	Negative pressure wound therapy apparatus
US10299964B2 (en)	2012-05-15	2019-05-28	Smith & Nephew Plc	Negative pressure wound therapy apparatus
US12116991B2 (en)	2012-05-15	2024-10-15	Smith & Nephew Plc	Negative pressure wound therapy apparatus
US20140140873A1 (en) *	2012-11-20	2014-05-22	Flow Control LLC	Sealed diaphragm pump
US9845799B2 (en)	2012-11-20	2017-12-19	Flow Control LLC	Sealed diaphragm pump
WO2014081701A1 (en) *	2012-11-20	2014-05-30	Flow Control Llc.	Sealed diaphragm pump
US10780202B2 (en)	2014-12-22	2020-09-22	Smith & Nephew Plc	Noise reduction for negative pressure wound therapy apparatuses
US10737002B2 (en)	2014-12-22	2020-08-11	Smith & Nephew Plc	Pressure sampling systems and methods for negative pressure wound therapy
US11654228B2 (en)	2014-12-22	2023-05-23	Smith & Nephew Plc	Status indication for negative pressure wound therapy
US10682446B2 (en)	2014-12-22	2020-06-16	Smith & Nephew Plc	Dressing status detection for negative pressure wound therapy
US10973965B2 (en)	2014-12-22	2021-04-13	Smith & Nephew Plc	Systems and methods of calibrating operating parameters of negative pressure wound therapy apparatuses
US20180132693A1 (en) *	2015-06-19	2018-05-17	Bitron S.P.A.	Pump for regenerating a decalcifying device of a dishwashing machine
EP3310238B1 (de) *	2015-06-19	2022-11-30	Bitron S.p.A.	Pumpe zur regenerierung einer entkalkungsvorrichtung einer geschirrspülmaschine
US10945581B2 (en) *	2015-06-19	2021-03-16	Bitron S.P.A.	Pump for regenerating a decalcifying device of a dishwashing machine
CN107956667A (zh) *	2017-11-10	2018-04-24	深圳市钜泰泵业有限公司	微型水泵及液体循环系统

Also Published As

Publication number	Publication date
GB8917747D0 (en)	1989-09-20
EP0411564A3 (en)	1992-01-02

Legal Events

Date	Code	Title	Description
1990-12-22	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1991-02-06	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): DE ES FR GB IT
1991-11-08	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1992-01-02	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): DE ES FR GB IT
1993-01-19	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN
1993-03-10	18D	Application deemed to be withdrawn	Effective date: 19920703

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